Rose plant `Auscot`

ABSTRACT

A new variety of rose plant of the shrub class distinctive in its character by its fully double, apricot yellow flowers, with abundant, continual blooming and the unusual blend of coloring and shaping of the flower.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct variety of shrubrose, a seedling resulting from a definite effort to produce animprovement in this class of roses.

SUMMARY OF THE INVENTION

Primary features of this new variety which connote a distinctive advanceover existing types are the vigorous abundant and continual bloomingtaken with the perfection of the fully double flowers of anold-fashioned type more particularly apparent in the accompanyingillustration of a specimen thereof.

BRIEF DESCRIPTION OF THE DRAWING

The drawing depicts, from side view, stems, foliage, flower buds andflowers in various stages of development.

DETAILED BOTANICAL DESCRIPTION

The following is a detailed description of the new variety, colourterminology being in accordance with the "Methuen Handbook of Colour"published by Eyre Methuen Ltd. (1963).

Variety denomination (in accordance with the UPOV Convention): Auscot(Trade name Abraham Derby).

Type: Hardy; bush; outdoor; seedling; for cut flowers and gardendecoration.

Class: Shrub.

Propagation: holds its distinguishing characteristics through succeedingpropagations by budding.

The rose plant was grown at Albrighton, Nr. Wolverhampton, England andwas derived as follows:

Female parent (seed parent): Aloha.

Male parent (pollen parent): Yellow Cushion.

The operation of the artificial pollination is therefore expressed bythe following (Aloha×Yellow Cushion).

The following observations are made of specimens grown outdoors inEngland.

Plant Description

Plant:

Height.--135-165 cm.

Habit.--Tall, strong, arching.

Branches:

Colour.--Young stems: Deep Green 29 E8, tinged with red on one side.Adult wood: Deep Green 30 E8.

Leaves:

Stipules.--Mid Green -- broad. Finely dentate at edges, sometimesglandular hairy. 2 wings.

Petiol.--Upper side -- flat with raised edge -- flattish -- fewglandular hairs. Under side -- Mid Green -- very occasional smallthorns.

Folioles.--5 with 3 at base of flower. Shape -- ovate, slightlyaccuminate. Serration -- dentate. Texture -- leathery.

General effect.--Dense, glossy foliage.

Colour.--Young foliage -- Upper side -- Deep Green 30 E8, tinged withRed. Under side -- Medium Brown, 10 F6, turning Green. Adult foliage --Upper Side -- Dark Green 30 F8. Under Side -- Medium Green 28 E6.

Hips and seed: This variety does not produce seed in normal gardenconditions, but only when cross-pollinated.

Inflorescence

Number of flowers: From 1 to 4 but generally 3.

Peduncle: Thick light Green, rigid, light red glandular aciculas, withoccasional small prickles. The thorns on the main stem are medium thornyand of average size. The colour ranges from 10D 8 when young to 9D 6when mature.

Length.--10 cm on average.

Sepals: Upper side: Light Green -- moderately finely hairy. Under side:Medium to Light Green, Glabrous edges with occasional wings -- finelyand glandular hairy.

Bud:

Shape.--Flask shaped.

Length.--3.5 cm.

Size.--Large.

Colour.--When opening. Upper side: Deep Red 11 D7. Under side: DeepYellow turning to Light Green 1 C8 at base merging into deep red 11 D7at tip.

Flower:

Shape.--Large cup shaped, quartered.

Diameter: 10 cm on average.

Colour: When opening. Upper side: Yellow 3 A8 at base, merging into verydeep pink 9 B8. Under side: Yellow 3 A8 at base, merging into light red10 B6. When blooming: Upper side: Yellow 4 A8, merging into Light Red 10A4. Under Side: Reddish Yellow 4 A7 at base, merging into Pale Red 9 A3at very outside. When finished blooming: Upper Side: Yellow 4 A8 merginginto Medium Red 10 B4. Under Side: Reddish Yellow 4 A7 turning to PaleRed 9 A3.

Fragrance.--Very strong -- fruit-like.

Lasting quality.--Very good.

Petals:

Shape.--Ovate with a truncated base.

Texture.--Silky tough.

Number.--70 on average.

Cleaning.--Good.

Reproductive Organs

Stamens:

Number.--138.

Anthers.--Butter yellow.

Filaments.--Yellow to Red. Variable length.

Pistils:

Number.--44 on average.

Stigmas.--Yellow.

Styles.--Greenish Yellow -- very hairy. Receptacle -- Shallow cup --Bright Yellow. Raised rim -- Light Green.

The development:

Vegetation.--Vigorous.

Blooming.--Abundant and continual.

Aptitude to bear fruits.--Normal.

Resistance to frost.--Good.

Resistance to diseases.--Good.

I claim:
 1. A new and distinct variety of rose plant of the shrub class,characterised as to novelty by its fully double, apricot-yellow flowerswith abundant and continual blooming the unusual blend of colouring andshaping of the flower being substantially as shown and described.